Crushing-machine



P. C. ANDERSEN.

CRUSHING MACHINE.

APPLICATION FILED. APR. 12, 1919.

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CRUSHING MACHINE.

APPLICATION FILED APR. 12, 1919.

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Patented Ja11.- 27, 1920.

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INVENTOR ATTORNEY PETER C. ANDERSEN, OF MEDFORD, WISCONSIN.

CRUSHING-MACHINE.

Specification of Letters Patent.

Patented Jan. 27,1920.

Application fi1ed April 12, 1919. Serial No. 289,684.

To all whom it may concern:

Be it known that I, PETER C. ANDnnsnN, a citizen of the United States, and resident of Medford, in the county of Taylor and State of Wisconsin, have invented new and useful Improvements in Crushing-Machines, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

The present invention relates to certain new and useful improvements in rock and ore crushers, particularly of the type exemplified in Letters Patent No. 1,298,153, issued to me March 25, 1919.

The invention is designed more particularly to provide a crusher of simple and efficient construction for crushing rocks or boulders.

The invention is further designed to provide a crusher having a normally stationary jaw capable of adjustment, and a movable jaw which is provided with a toggle-joint lever of simple construction for exerting great pressure.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised of the practical application of the principles thereof, in. which:

Figure 1 is a plan view of the device embodying my invention, parts being broken away for the purpose of illustration;

Fig. 2 is a View, part in section and part in elevation, said view being taken on the line 22 of Fig. 3;

Fig. 3 is a transverse sectional view taken .011 the line 3.3 of Fig. 2;

Fig. 4 is a transverse sectional view taken on the line H of Fig. 2;

Fig. 5 is a detail view, part in section and part in elevation. said view being taken on the line 5-5 of Fig. 3;

Figs. 6 and 7 are fragmental plan views of the inner end of-the uppermost and lower crusher jaw arms respectively; and

Fig. 8 is a perspective view of my improved crushingjaw adjusting filler.

In general the device comprises a frame, a normally stationary crusher jaw 4 carried thereby, a movable crusher jaw 5 including a plurality of cooperating oscillating members, and means for operating the movable jaw. The frame consists of side angle frames 6 which have their ends reinforced and secured together by metal plates 7 secured by rivets.

The stationary crusher jaw .4; is a heavy metal plate inclined slightly from the vertical, and adjustably secured to the frame by a bolt rod 8 passing through the jaw and frame and further braced by rods 9. The stationary jaw .41 is capable of pivotal move.- ment 'on rod 8, its adjustment is ob.- tained by means fillers 10 inserted between the rods 9 and the elongated openings 9 through which they pass.

The movable crusher jaw 5 consists of a plurality of members 11, the lower members having tapered crusher faces 12 and the uppermost member having crusher teeth 13,

opposing teeth 13, on the stationary crusher jaw 4. Each member 11 has its outer end swingingly supported within the frame by means of links. 14, and its inner end 11 pivotally connected to a rod 14 by means of a yoke connection 15. The rods 14. are supported in a pair of uprights 16, see Figs. 3 and 5.

As depicted in Figs. 6 and 7. the inner ends 11 of the members 11 are recessed as at 17 to permit the pivoting of the inner ends of the toggle arms 18. the outer ends of which .are pivoted to rods 19 secured in the frame. a As the adjustable yoke connections holds the same in contact with the pivot rod.

As will be readily seenthis type of connection between the arms and their pivots permits the ready take-up of any lost mo-' tion dueto wear.

J ournaled in bearings 23 is a driven shaft 24. having fixed on each end thereof a fly wheel .25, and fixed onsaid shaft intermediate its'ends and disposed over the uprights 16. and their rods 14 is an eccentric 26. A

pitman 27 connects the eccentric 26 with the topmost rod 14', whereby the rotation of the driven shaft 24 imparts a reciprocating movement to the upright 16 to bend the tog e j s fa d by ale- 18 a f l wit the result that the movable jaw will be moved toward and away from the stationary jaw to crush the rock therebetween. As depicted in Fig. 6, the arm 11 of the uppermost member 11 is recessed as at 27 to permit the engagement of the pitman with the rod 14. i

A novel means of compensating for lost motion due to excessive wear of the pitman 27 or eccentric 26 is provided by means of a bearing block 28 engaging the eccentric and a bearing block 29 engaging the uppermost rod 14 which are held apart and against their respective journals by means of an op positely threaded turn-screw 30.

The uprights 16 have adjusting means similar to those of the arms 18 and consist of bearing blocks 31 held in place against the rods 14 by means wedges 32.

The shaft 24 is continuously driven by power transmitted in any suitable manner. In the drawings I have shown a pulley 33 which is adapted to be connected up by a belt (not shown) to any source of power. It will be noted that by the construction described it is possible to exert a very great crushing pressure upon the rock, and it will be understood that any changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

What I claim as my invention is:

1. In a crusher, the combination of a frame, a normally stationary crusher ja'w mounted therein, a movable crusher jaw mounted therein and cooperating with said stationary jaw and comprising a plurality of superimposed oscillatory members, links swingingly suspending the outer ends of said oscillatory members from the frame, toggle arms pivotally connected at their rear ends to the frame and at their forward ends to the rear ends of said members to form toggle joints, means pivotally connecting the joints together, and means for imparting a recipro al motion to the means connecting the toggle joints to operate said toggles and to move said movable jaws toward and away from the stationary jaw.

2. In a crusher, the combination of a frame, a normally stationary crusher jaw mounted therein, a movable crusher jaw mounted therein and cooperating with said stationary jaw and comprising a plurality of superimposed oscillatory members, swinging links independently pivoting the said oscillatory members to the frame, toggle arms pivotally connected at their rear ends to the frame and attheir front: ends to the rear ends of said members to form toggle joints, means whereby lost motion in the toggle joints maybe compensated for, and

means for oscillating said toggle joints to move the movable jaw toward and away from the normally stationary aw.

8. In a crusher, the combination of a frame, a normally stationary crusher jaw mounted therein, a movable crusher jaw mounted therein and cooperating on said stationary jaw and comprising a plurality of superimposed oscillatory members, means swingingly supporting the outer ends of said members in the frame, uprights situated in said frame intermediate its ends, ,transverse rods connecting said uprights, means connecting the inner ends'of said oscillatory members with the transverse rods, toggle arms pivotally connected at their rear ends to the frame and at their front ends to said transverse rods, thereby forming toggle joints between the toggle arms and the oscillatory members, and means connected with one of said transverse rods for imparting a reciprocating movement to .said uprights to operate said toggles to move the movable jaw toward and away from said normally stationary joint.

4. In a crusher, the combination of a frame, a normally stationary crusher jaw mounted therein, a movable crusher jaw mounted therein and cooperating on said stationary jaw and comprising a plurality of superimposed oscillatory members, means swingingly supporting the outer ends of said members in the frame, uprights'situated in said frame intermediate its ends, transverse rods connecting said uprights. means connecting" the inner ends of said oscillatory members with the transverse rods, toggle arms pivotally connected at their rears ends to the frame and at their front ends to said transverse rods, thereby forming toggle joints between the to gle arms and the oscillatorv members, a driven shaft journaled in the frame, an eccentric fixed on said shaft, and a pitman connecting said eccentric and the to gle joints between the to gle arms and the oscillatory members whereby said mernbers toggle reciprocated to move said movable jaw toward and away from said normally stationary jaw.

5. A crushing machine comprising a frame having an adjustable crusher jaw, a movable crusher aw therein formin an ad ustable hopper tl erebetween, a tooole arm having one end pivoted to said frame and its other end pivoted totlie inner end of said movable jaw, t us forming a to gle jaw, a driven shaft journaled in said frame, an eccentric fixed on said shaft, a pitman having one end en a ing said eccentric and its other e d pivoted to sa d toggle joint, and means for compensating for lost motion in said pitrnan due to excessive wear, includ-v ing a bearing block enga sing the periphery of said eccentric. a bearin block engaging the pivot between said toggle arm and the the medium of the eccentric and pitman oscillating said movable jaw to crush material disposed in said adjustable hopper.

6. A crushing machine comprising a frame, a normally stationary crusher jaw mounted therein, a movable crusher jaw mounted therein and cooperating with said stationary j aw, said movable crusher jaw including a plurality of superimposed oscillatory members means swingingly supporting the outer ends of said members in the frame including link members having their ends pivotally connected to the frame and said oscillatory members, and means connected with the inner ends of said oscillatory members for supporting the same and imparting a reciprocal motion thereto to move said movable jaw toward and away from the stationary jaw.

In testimony whereof, I aflix my signature.

PETER C. ANDEIFSEN. 

